<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>认识css属性</title>
	
<link href="style03.css" rel="stylesheet" type="text/css">
</head>

<body>
<div class="box1">宽度，高度，边框，背景色</div>
<div class="box2">边界</div>
<div class="box3">边界，水平居中</div>
<div class="box4">填充</div>
<div class="box5">盒子模型：元素的真实宽度：宽度+边界+填充+边框</div>
<div class="box6">11111</div>
<div class="box7">11111</div>
<div class="box8">11111</div>
<div class="box9">11111</div>
	<div class="box10">11111</div>
</body>
</html>
